Home / 11,819.79-16,304.40-7,628.04

Finding the Fourth Proportional to 11,819.79, 16,304.40 and 7,628.04

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Solution

The fourth proportional to 11,819.79, 16,304.40 and 7,628.04 is: 10,522.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.79 : 16,304.40 = 7,628.04 : x
  2. Step 2: Convert to fraction form
    11,819.79/16,304.40 = 7,628.04/x
  3. Step 3: Cross multiply
    11,819.79x = 16,304.40 × 7,628.04
  4. Step 4: Simplify right side
    11,819.79x = 124,370,615.38
  5. Step 5: Solve for x
    x = 124,370,615.38/11,819.79
  6. Step 6: Final answer
    x = 10,522.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.